Wilkerson® by Dixon® R21-02R Dial Air Regulator Without Gauge, 1/4 in NPT/BSPP-G, 117 scfm Flow Rate, 0 to 160 psig Adjustable Pressure | Cooney Brothers
WILKERSON R21-02-L00 DIAL AIR REGULATOR RQ174A
WILKERSON PNEUMATIC R21-02-000 AIR Regulator, 32 to 150 Degrees F, 1/4" NPT Thread, Non-Rising Pressure Adjusting DIAL, 5 to 160 PSIG, Piston Operated: Amazon.com: Industrial & Scientific
R21-C4-000 by WILKERSON PNEUMATIC - Buy or Repair at Radwell - Radwell.com